Extruusiosferonoituminen

Extruusiosferonoituminen is a hypothetical geological concept used in speculative science and fiction to describe a rapid extrusion of crustal or mantle material through a planetary surface into the near-surface exosphere, followed by oxidation and rapid cooling that yields a distinctive glassy veneer or micro-spherules in the regolith. The term is a neologism, not part of established geology, and is mainly encountered in discourse exploring extreme extrusion processes or exospheric interactions.

Proposed mechanism: In the model, a sudden tectonic or magmatic overpressure creates conduits that drive melt to the surface. The expelled material may emerge as spews or jets of melt droplets and filaments. Upon exposure to the tenuous upper atmosphere, reactive species in the exosphere interact with the melt at low pressure, promoting rapid oxidation and quenching. The result is glassy, silica-rich spherules or veneers embedded in or deposited on the surface, with distinct nanostructured textures that differ from conventional tektites.

Evidence and context: There is no direct observational evidence for extrusions through the exosphere in real planetary settings. Some laboratory simulations and analogs of rapid quenching in low-pressure environments have been cited in speculative literature, but formal confirmation is lacking. The concept is mainly used as a thought experiment to explore how extreme surface-exosphere coupling could influence rock textures and ejecta.

Related topics include tektites, spherules, volcanism, exosphere, and planetary geology.